Watertight, crushproof, and dustproof. Features a watertight silicone O-ring lid. Comfortable rubber handle for extra grip. Supplied with Pick N Pluck with convoluted lid foam. Open cell core with solid wall design - strong, light weight. Opens easily with double throw latches. Stainless steel hardware and padlock protectors. Automatic Pressure Equalization Valve - balances interior pressure, keeps water out.